Insulated, flexible, and built to last.Bike rides along the beach or snowshoeing in the backcountry it’s easy to stay hydrated on the go with our Wide Mouth Flex Cap. Designed with stainless steel pivots and a flexible strap, this cap moves when you do. Plus, its made with Honeycomb Insulation to keep drinks cold up to 24 hours or hot up to 12 no matter what the weathers doing outside.Product BenefitsCompatible with all Wide Mouth bottlesHoneycomb Insulation helps keep cold drinks cold and hot drinks hotDurable, stainless steel pivots allow the strap to move easilyBPA-Free and Phthalate-FreeLifetime Warranty